Mitsubishi DS5000TK DS5000 Memory Control Register, LabelMCON Register Address 0C6H, RA32/8, ECE2

Models: DS5000TK DS907x SIP

1 174
Download 174 pages 46.43 Kb
Page 39
Image 39

 

 

 

 

 

 

 

 

 

 

 

 

USER'S GUIDE

 

 

 

 

 

 

 

 

 

 

DS5000 MEMORY CONTROL REGISTER

 

 

 

 

 

 

Label:MCON

 

 

 

 

 

 

 

Register Address: 0C6H

D7

D6

 

D5

 

 

D4

D3

D2

D1

D0

 

 

 

 

 

 

 

 

 

 

 

 

 

 

PA3

 

PA2

 

PA1

 

 

PA0

RA32/8

ECE2

 

PAA

SL

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Bit Description:

 

 

 

 

 

 

 

 

 

 

 

MCON.7±4:

 

PA3±0

 

 

 

 

 

 

 

 

 

ªPartition Addressº:

Used to select the starting address of Data Memory on the Byte±wide bus.

 

 

 

Program space lies below the partition address.

 

 

 

 

 

 

PA3

PA2

PA1

PA0

Partition Address

 

 

 

 

 

0

 

0

0

0

0000H

 

 

 

 

 

 

0

 

0

0

1

0800H

 

 

 

 

 

 

0

 

0

1

0

1000H

 

 

 

 

 

 

0

 

0

1

1

1800H

 

 

 

 

 

 

0

 

1

0

0

2000H

 

 

 

 

 

 

0

 

1

0

1

2800H

 

 

 

 

 

 

0

 

1

1

0

3000H

 

 

 

 

 

 

0

 

1

1

1

3800H

 

 

 

 

 

 

1

 

0

0

0

4000H

 

 

 

 

 

 

1

 

0

0

1

4800H

 

 

 

 

 

 

1

 

0

1

0

5000H

 

 

 

 

 

 

1

 

0

1

1

5800H

 

 

 

 

 

 

1

 

1

0

0

6000H

 

 

 

 

 

 

1

 

1

0

1

6800H

 

 

 

 

 

 

1

 

1

1

0

7000H*

 

 

 

 

 

 

1

 

1

1

1

8000H*

 

 

 

*A 4K byte increment (not 2K bytes) in the Partition Address takes place between bit field values 1110B and 111B.

Initialization:

Set to all 1's on a No VLI Power On Reset or when the Security Lock bit is

 

cleared to a 0 from previous 1 state. These bits are also set to all 1's when

 

any attempt is made to have them cleared to all 0's with the SL bit set to 1

 

(illegal condition).

Read Access:

May be read anytime.

Write Access:

PAA bit must = 1 in order to write PA3±0. Timed Access is not required to

 

write to PA3±0 once PAA=1.

MCON.3:

RA32/8

ªRange Addressº:

Set the maximum usable address in on the Byte±wide bus.

 

RA32/8=0 sets Range Address = 1FFFH (8K)

 

RA32/8=1 sets Range Address = 7FFFH (32K)

Initialization:

Set to a 1 during a No VLI Power On Reset and when the Security Lock bit

 

(SL) is cleared to a 0 from a previous 1 state. Remains unchanged on all oth-

 

er types of resets.

 

 

 

050396 38/173

39

Page 39
Image 39
Mitsubishi DS5000TK manual DS5000 Memory Control Register, LabelMCON Register Address 0C6H, PA3 PA2 PA1 PA0, RA32/8, ECE2